I may fable you may fable he may fable we may fable you may fable they may fable
V-ing form
I may be fabling you may be fabling he may be fabling we may be fabling you may be fabling they may be fabling
Perfect
I may have fabled you may have fabled he may have fabled we may have fabled you may have fabled they may have fabled
V-ing perfect
I may have been fabling you may have been fabling he may have been fabling we may have been fabling you may have been fabling they may have been fabling
Negation
Simple form
I mayn't fable you mayn't fable he mayn't fable we mayn't fable you mayn't fable they mayn't fable
V-ing form
I mayn't be fabling you mayn't be fabling he mayn't be fabling we mayn't be fabling you mayn't be fabling they mayn't be fabling
Perfect
I mayn't have fabled you mayn't have fabled he mayn't have fabled we mayn't have fabled you mayn't have fabled they mayn't have fabled
V-ing perfect
I mayn't have been fabling you mayn't have been fabling he mayn't have been fabling we mayn't have been fabling you mayn't have been fabling they mayn't have been fabling
Interrogative form
Simple form
may I fable? may you fable? may he fable? may we fable? may you fable? may they fable?
V-ing form
may I be fabling? may you be fabling? may he be fabling? may we be fabling? may you be fabling? may they be fabling?
Perfect
may I have fabled? may you have fabled? may he have fabled? may we have fabled? may you have fabled? may they have fabled?
V-ing perfect
may I have been fabling? may you have been fabling? may he have been fabling? may we have been fabling? may you have been fabling? may they have been fabling?
Interro-negative form
Simple form
mayn't I fable? mayn't you fable? mayn't he fable? mayn't we fable? mayn't you fable? mayn't they fable?
V-ing form
mayn't I be fabling? mayn't you be fabling? mayn't he be fabling? mayn't we be fabling? mayn't you be fabling? mayn't they be fabling?
Perfect
mayn't I have fabled? mayn't you have fabled? mayn't he have fabled? mayn't we have fabled? mayn't you have fabled? mayn't they have fabled?
V-ing perfect
mayn't I have been fabling? mayn't you have been fabling? mayn't he have been fabling? mayn't we have been fabling? mayn't you have been fabling? mayn't they have been fabling?